The 90210 actress, 22, and her beau of several months packed on the PDA at the Express store grand opening in Vancouver, Canada July 12. "Here for one night only," the star tweeted. The following day, Grimes was photographed kissing her tattooed beau while waiting in line at the Vancouver International Airport.

Instead of resting after a busy two days of traveling, the pair hit up the Hollywood nightclub Beacher's Madhouse July 15, where an eyewitness says Grimes was "dancing very seductively" with Beech, who is also a musician and T-shirt designer.

Credit: Twitter

"He was not interested in the show at all," the eyewitness tells Us Weekly. "He only had eyes for Shenae."

Grimes recently wrapped production on the film Empire State, costarring Liam Hemsworth, 22, EmmaRoberts, 21, and Nikki Reed, 24. She will reprise her role as Annie Wilson when Season 5 of 90210 premieres this fall on The CW.